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=====================
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Development version
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=====================
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This document describes in-flight development work.
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The CodeMirror js library has been updated fron 2.23 to 2.32
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this might induce a few changes in behavior of keymaps in the notebook,
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especially intenting/deindenting blocks that is now bound to Ctrl+] and ctr+[
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* Exception types can now be displayed with a custom traceback, by defining a
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``_render_traceback_()`` method which returns a list of strings, each
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containing one line of the traceback.
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In-process kernels
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------------------
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The Python-language frontends, particularly the Qt console, may now communicate
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with in-process kernels, in addition to the traditional out-of-process
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kernels. An in-process kernel permits direct access to the kernel namespace,
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which is necessary in some applications. It should be understood, however, that
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the in-process kernel is not robust to bad user input and will block the main
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(GUI) thread while executing. Developers must decide on a case-by-case basis
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whether this tradeoff is appropriate for their application.
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Backwards incompatible changes
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------------------------------
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* Calling :meth:`InteractiveShell.prefilter` will no longer perform static
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transformations - the processing of escaped commands such as ``%magic`` and
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``!system``, and stripping input prompts from code blocks. This functionality
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was duplicated in :mod:`IPython.core.inputsplitter`, and the latter version
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was already what IPython relied on. A new API to transform input will be ready
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before release.
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